140 SYSTEMATIC LIST AND SYXOXYMi. 



O P H I D I A— Continued. 



1859, P. R. R. Rep., X, pi. 36, f. 3; Coop., 1860, P. R. R. Eep., XII 

 (2), 296; Yarr., 1ST."., Wheel. Rep., V, 550; Coues A Yarr., 1875, 

 Havd. Rep., IV, 281. Trap, sirtalis var. .Ian, 1863, Sist, 69, — 1865, 

 Arch. Zool., 211. Eutaenia cooperi Kenn., 1859, Pr. Phil. Ac; ('imp., 



1860, I'. R. R. Rep., XII (2), 296; Yarr., 1875, Wheel. Rep., V, 551. 

 Trop. ttirtidw var. cooperi .Ian, 1863, Sist., 69, 1865, Arch. Zool., 212. 

 Eutaenia elegant 1'.. A <;., is:,:;, Serp., :;i ; (Kenn.) Bd., L859, P. R. R. 

 Rep., X, Rept., 10; Yarr., 1875, Wheel. Rep., V, 549. Trop. elegant 

 Jan, 1863, Sist., 70, — 1865, Arch. Zool., 214. /.'. cyrtopsis Kenn., I860, 

 Pr. Phil. Ac, 333; Cope, 1866, Pr. Phil. Ac, o' 6; Yarr., 1875, Wheel. 

 Rep., V, 550; Cope, 1880, Bull. 20, U. S. Mus., 23. Thamnophi* cyr- 

 topsis var. cyclides Cope, 1860, Pr. Phil. Ac, 299. E. ordinuidts B. & G., 

 1853, Serp., :i:i; Grd., 1858, Expl. Exp., Herp., 153, pi. 14, f. 1-4; Bd., 

 1859, P. R. R. Rep., X, pi. 26, f. 3.; Yarr., 1875, Wheel. Rep. V, 548. 

 Tropidonotw ordinoides B. .v.. (I., 1852, Pr. Phil. Ac, 176. T. sirtalis 

 var. ordinoides Jan, 1863, Sist., 69, — 1S65, Arch. Zool., 211. Trop. 

 concilium Hall., 1852, Pr. Phil. Ac, 182. Eut. amcinna 1!. & G., 1853, 

 Serp., 146; Bd., 1859, P. R. R. Rep., X, Rept., 10; Coop., 1860, P. R. 

 R. Rep., XII (2 1, 298; Yarr., 1875, Wheel. Rep., V, 549. E. liam- 

 mondi Kenn., I860, Pr. Phil. Ac, 332; Yarr., 1S75, Wheel. Rep., V, 

 549. Tmp. hammondi Jan, 1863, Sist., 70, — 1865, Arch. Zool., 215. 

 Eutaenia atrata (Kenn.) Coop., 1860, P. R. R. Rep., XII (2), 296; 

 Yarr., 1875, Wheel. Rep., V, 551. Trop. saurUus var. Jan, 1863, 

 Sist, 70, — 1S65, Arch. Zool. Eut. sumichrasti ('"]»•, 1866, Pr. Phil. 

 Ac, 306; Yarr., 1875, Wheel. Rep., V, 547. Thamnophis scalaris 

 Cope, 1860, Pr. Phil. Ac, 369. Eutaenia scalaris Cope, 1866, Pr. Phil. 

 Ac, 306; Yarr., 1875. Wheel. Rep., V, 549. Eutaenia phenax Cop.-, 

 1868, Pr. Ac Phil., 134; Yarr., 1875, Wheel. Rep, Y, 549. (?) Trop. 

 scaliger Jan, 186:1, Sist., 70. (?) Trop. glaphyros Jan, 186.'!, Sist, 70. 

 T. ruficeps Peters, 1869, Mb. Brl. Akad, 877. 



California to Mexico. 



Yar. QUADBISERIALI8 



Tropidonotus guadmerialia Fischer, 1S79, Verh. Nat. Ver. Hamb., 82. 

 Labials 8. Infralabials Hi. Orbitals 1—3. Scales in 19 rows, 

 keeled. Yentrals 149. Anal bifid. Snheandals 79 pairs. Oliva- 

 ceous, with four rows of small Mack spots. 



Mazatlan, Mexico. 



(Nerodia.) 



Tbopidonott/s sipedon (Water Snake) "5 



Coluhr sipedon Linn, 1758, Syst., L 219, — 1766, Syst, I, 379; Gmel, 

 1788, Syst. Xat. I. inn, I, 1098; Shaw, 1802, Z 51., Ill, 496; Men., 

 1820, Syst, 124; TIarl, 1827, Jour. PhiL ic, 351, — 1835, Med. Res., 

 114; Storer, 1839, Kepi Mass., 228; Thompson, 1842, Hist. Vermont, 

 118. Tropidonotus sipedon Holbr., 1812, Herp, IY, 29, pi. VI; Dum. 

 Bibr., 1851. Erp., VII, 568. Nerodia sipedon .'.. & G., 1853, Serp, 38 

 Baird, 1854, X. Y. Serp, 16, — 1S59, P. R. R- Rep., X, pi. 27, f. 27. 



